That was then but even all the negative points. The fan runs surprisingly quiet, completely free of background noise, and moved noticeably much (more) air (eg as a Fractal Silent Series 2). I'll control the fan with PWM on Speedfan, but I set it to 1300rpm minimum speed, since I do not need SilentPC-and he's still pleasantly quiet at speed.
Since I do not care about the LEDs and the fan even surpasses my expectations, I forgive five stars.